The preliminary program for this summer's Jazzfest was announced today. A rather typical assortment of performers that sit squarely within jazz Herbie Hancock), and others that sit at its boundaries/perimeter (Alison Krauss, Bela Fleck). One real surprise is the Jerry Granelli Quartet. Drummer Granelli is the only surviving member of the Vince Guaraldi group that did the original Charlie Brown Christmas music. But that's not the surprise. The surprise is that his guitar player is Robben Ford!